9000 - 9999: 9921

9921 - POWER TOP SWITCH (ROOF OPEN/CLOSE) CIRCUIT SHORT TO B(+)





- When Monitored: Continuous with the ignition on.
- Set Condition: When the Power Top Control Module (PTCM) senses high current flow at the Power Top Switch (Open/Close) sense.





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.

Diagnostic Test

1. Power Top Switch




Turn the ignition off.
Disconnect the Power Top Switch harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Measure the resistance between the Power Top Switch Signal circuit and the Power Top Switch Indicator Driver circuit from the Power Top Switch connector.
Is the resistance below 5.0 ohms?

Yes

- Replace the Power Top Switch.
- Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test

No

- Go To 2

2. Power Top Switch Circuit Short To (B+)




With the ignition off.
Disconnect the Power Top Control Module C1 harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Turn the ignition on.
Measure the voltage between ground and the Power Top Switch circuit.
Is the voltage above 1.0 volts?

Yes

- Repair the Power Top Switch circuit for a short to (B+).
- Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test

No

- Replace the Power Top Control Module.Removal.
- Perform POWER TOP CONTROL MODULE VERIFICATION TEST. Power Top Verification Test